# Connections **URL:** \ **Category:** Legacy AirPrime modules\ **Created:** [December 7, 2009, 4:17pm UTC](https://forum.sierrawireless.com/t/connections/3947 "2009-12-07T16:17:06Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![raveesa](https://avatars.discourse-cdn.com/v4/letter/r/54ee81/32.png) [@raveesa](https://forum.sierrawireless.com/u/raveesa)\ **Post date:** [October 5, 2010, 11:05am UTC](https://forum.sierrawireless.com/t/connections/3947/5 "2010-10-05T11:05:07Z")
Hi, I have designed new board with help of Q2686 development kit user guide . We have also bought some q2686 module and evln kit. I have attached the schs of my design … I powerd up the board(designed borad, tried with both 3.3v and 4v DC supply)… but its not working… I tried synch with PC using M2M studio(similarly the way I was doing with the evuln board) but unable to connect the board… And its not genarating the 1.8v(for sim) and 2.8v from the internal ckt of the module… and also I replaced the preprogrammed module( for SMS services to the new board), but it SIM itself is not subscribng … what may be the problem… pls help,… thanks chethan ![](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/3/3e8fcc6527f5cd1a0165cdc5a80b60e74541516e.JPG) --- _[View the full topic](https://forum.sierrawireless.com/t/connections/3947)._